Jefa 80° Quadrants |
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Jefa 80° Quadrants |
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| Jefa 80° quadrants |
| The Jefa 80° quadrants are not made from
cast-aluminium like most other quadrants in the market place. As most
quadrants will also function as rudder stop, one could have enormously
high impact loadings. Cast-aluminium is very brittle and could easily
break under these circumstances. All Jefa quadrants are fabricated from
high strength Aluminium 6082 (AlMgSi1 or Duralumin). This material is enormously
strong, whilst retaining high ductility (Jefa Marine produces rudder
shafts from this material). This results in an extremely strong quadrant
arrangement. The quadrants always have twin high precision CNC milled
tracks with deep groove depths and large guide bend radii ensuring a reliable
and long lifetime of the cable. The opening in the quadrant is meant to be used as rudder stop. When another stop arrangement is required, we can weld one or two stop blocks on a position of your choice. An optional autopilot arm can be welded underneath the quadrant or pointing aft at the quadrant boss. Please click on the picture for a larger view. |
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Jefa radial quadrants |
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Part No. |
Description |
Price in Euro |
QU1580 |
80° quadrant R=150, maximum bore size = 75 mm. |
€ 204 |
QU2080 |
80° quadrant R=200, maximum bore size = 75 mm. |
€ 233 |
QU2580 |
80° quadrant R=250, maximum bore size = 100 mm. |
€ 287 |
QU3080 |
80° quadrant R=300, maximum bore size = 100 mm. |
€ 382 |
QU3580 |
80° quadrant R=350, maximum bore size = 100 mm. |
€ 447 |
QU4080 |
80° quadrant R=400, maximum bore size = 125 mm. |
€ 509 |
QU4580 |
80° quadrant R=450, maximum bore size = 125 mm. |
€ 660 |
QU5080 |
80° quadrant R=500, maximum bore size = 125 mm. |
€ 788 |
QUBORE |
bore and key quadrant to customers dimensions |
€ 72 |
QUSTOP |
surcharge for additional rudder stop blocks |
€ 115 |
QUAUTO |
surcharge for additional autopilot arm connected to quadrant |
€ 115 |
| Autopilot connection: |
The best way to add an autopilot connection to the quadrant is an additional
autopilot arm welded to the boss.
| Special shaft connections: |
Quadrants for carbon rudder stocks need a profile in stead of a round hole.
We can adjust each quadrant to suit your needs.
Quadrants for carbon rudder stocks need a profile in stead of a round hole.
We can adjust each quadrant to suit your needs.
